Computer System for Evaluating Fixed Income Trade Opportunities

1. A computer-implemented system for assisting in the trading of municipal bonds comprising: a central processor unit for receiving municipal bond trade data relating to municipal bond offers, bids, bids wanted and trades; a filter subsystem in communication with the central processor unit for defining a filter for a prospective trade of a municipal bond, the filter including event characteristics relevant to the municipal bond of the prospective trade; and an event subsystem in communication with the central processor unit for applying the filter to the received municipal bond trade data to identify events involving municipal bonds other than the municipal bond of the prospective trade and having the characteristics, wherein the identified events having the characteristics can be made available on an interface displaying real-time market content relevant to the prospective trade for use in the trading of municipal bonds.

2. The computer-implemented system of claim 1 , wherein the filter subsystem and the event subsystem are implemented at least in part by the central processor unit.

3. The computer-implemented system of claim 1 , wherein the filtering subsystem comprises filtering criterion associated with a user.

4. The computer-implemented system of claim 1 , wherein the filter is configurable by a user.

5. The computer-implemented system of claim 1 , wherein characteristics of events comprise: a price; a yield; a CUSIP; a state of issue; and a trade time.

6. The computer-implemented system of claim 5 , wherein characteristics of events further comprise: a trade type identifier; and a trade date.

7. The computer-implemented system of claim 1 , wherein the filter comprises: an event filter for determining whether a specific non-user event should be provided to the user; and a correlation filter for determining whether specific user events should be correlated with the specific non-user event.

8. The computer-implemented system of claim 7 , wherein the event filter comprises the correlation filter.

9. The computer-implemented system of claim 1 , wherein the filtering subsystem is implemented on a user's computer system.

10. The computer-implemented subsystem of claim 1 , further comprising a market information subsystem in communication with the central processor unit for monitoring market data and generating events to be provided to the event subsystem.

11. The computer-implemented system of claim 1 , further comprising a market information subsystem for providing market information or news related to the identified events having the characteristics.

12. The computer-implemented system of claim 1 , further comprising a data communication server for providing event data to the central processing unit.

13. A computer-implemented system for providing data related to municipal bonds comprising: a data communication server for receiving data related to municipal bonds from at least one data or news provider; a central processing unit for receiving municipal bond data from the data communication server and for providing at least a portion of the received municipal bond data to a user, the central processing unit comprising: a filter subsystem for allowing a user to configure a filter to receive municipal bond data related only to a prospective trade of a municipal bond, the filter including event characteristics relevant to the municipal bond of the prospective trade; and an event subsystem for monitoring the municipal bond data received and applying the filter to the municipal bond data received to identify events involving municipal bonds other than the municipal bond of the prospective trade having the characteristics, wherein the central processing unit provides filtered municipal bond data to the user; and an interface for displaying real-time market content relevant to the municipal bond data.

14. The computer-implemented system of claim 13 , wherein the at least one data or news provider comprises the MSRB.

15. The computer-implemented system of claim 13 , wherein the filter subsystem receives at least one indicative of a municipal bond from a security master file for configuring the filter.

16. The computer-implemented system of claim 13 , wherein the filtering subsystem is implemented on the user's computer system.

17. The computer-implemented system of claim 13 , wherein the filter comprises: an event filter for determining whether a specific non-user event should be provided to the user; and a correlation filter for determining whether specific user events should be correlated with the specific non-user event.

18. The computer-implemented system of claim 17 , wherein the event filter comprises the correlation filter.

19. The computer-implemented system of claim 13 , further comprising a market information subsystem for providing market information or news related to the filtered data.